Uploaded files must be smaller than 2 MB
Avoid scanning PDFs from printed documents, if possible. With the exception of documents that exist in paper form only, it is always recommended to electronically convert documents (Microsoft Word/Office files, in particular) from the original file by saving them as PDFs.
Save image files as .jpg or .png files, preferably at a size/resolution suitable for use online. Do not submit images as .tif or .psd files.